Lincoln Mark VIII fan wiring question - Team Camaro Tech
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post #1 of 4 (permalink) Old Oct 28th, 09, 08:32 PM Thread Starter
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Joe
 
Join Date: Jan 2001
Location: Benicia CA
Posts: 1,262
Question Lincoln Mark VIII fan wiring question

I have a wiring question.

I have a Mark VIII fan on my 69. It's been installed for about 4 years now and works great.
My fan is a 3-wire fan. I have 2 75 amp relays connected to it. One from the thermostat control; the other from the AC clutch (fan comes on with the clutch). The pigtail has three wires. I am using the outer connections as the positive from each of the relays. I am using the center as the ground. This setup has been working fine. The fan runs only at high speed.

From reading posts here on the Mark VIII fan setup, it seems that the center wire is supposed to used for low speed fan.

Does anyone have a real wiring diagragm that describes this? My setup has worked fine for 4 years so I don't think I am hurting the fan by having it wired this way. I am curious how it should really be wired.

Thanks
joe

Joe G

69 Coupe; ZZ430; TKO600; 3.55 posi; 13" Baer 4 wheel discs; 17" Billet Specialties wheels; Hotchkis/Koni rear; Ride Tech front; Classic AutoAir AC and power windows cuz I'm old and lazy!
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post #2 of 4 (permalink) Old Oct 30th, 09, 09:43 AM
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Carl
 
Join Date: Apr 1999
Location: La La Land, CA
Posts: 2,707
Re: Lincoln Mark VIII fan wiring question

Some of the MarkIII fans have the center terminal dummied. Pop the plastic inspection cover off of the motor near the plug to see if the center terminal is fuctional.


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post #3 of 4 (permalink) Old Oct 30th, 09, 09:52 AM
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JohnnyRotten
 
Join Date: Mar 2006
Location: Slow-Kal
Posts: 189
Re: Lincoln Mark VIII fan wiring question

i have a few links saved at www.JollyRodder.com that i try to help folks with, this is one of them:

scroll for schematic & info Taurus Fan wiring
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post #4 of 4 (permalink) Old Nov 4th, 09, 03:52 PM Thread Starter
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Joe
 
Join Date: Jan 2001
Location: Benicia CA
Posts: 1,262
Re: Lincoln Mark VIII fan wiring question

Thanks guys

Joe G

69 Coupe; ZZ430; TKO600; 3.55 posi; 13" Baer 4 wheel discs; 17" Billet Specialties wheels; Hotchkis/Koni rear; Ride Tech front; Classic AutoAir AC and power windows cuz I'm old and lazy!
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